Mount Rainier above forested ridges in Washington

Form 990-PFTax year 2025EIN 36-6065388

Alsdorf Foundation

A private foundation in Clinton, WA. Its return for tax year 2025 lists 9 grants and $425,000 paid in grants.

Tax year 2025 (period ending Dec 31, 2025), read from the IRS e-file on Nov 11, 2026. Returns reach the IRS 5 to 18 months after the year they describe.

How to apply

Preselected only

The return checks the box saying the foundation gives only to preselected organizations and does not accept unsolicited requests.

Assets and giving by year

8 returns on file
Grants paid by tax year. The latest year is in blue.
  • Tax year 2025

    $425,000

    Grants listed
    9
    Assets, end of year
    $3,827,981
  • Tax year 2024

    $315,000

    Grants listed
    6
    Assets, end of year
    $4,006,362
  • Tax year 2023

    $425,000

    Grants listed
    12
    Assets, end of year
    $3,979,230
  • Tax year 2022

    $275,000

    Grants listed
    8
    Assets, end of year
    $4,376,967
  • Tax year 2021

    $225,000

    Grants listed
    10
    Assets, end of year
    $4,364,559
  • Tax year 2020

    $0

    Grants listed
    0
    Assets, end of year
    $4,249,177
  • Tax year 2019

    $518,365

    Grants listed
    12
    Assets, end of year
    $4,219,088
  • Tax year 2018

    $1,036,260

    Grants listed
    33
    Assets, end of year
    $4,266,502

Grants paid in 2025

9 grants, largest first

As listed on the return.

  1. Art Institute of ChicagoChicago, IL

    Educational

    $210,000
  2. Swedish FoundationSeattle, WA

    Healthcare

    $105,000
  3. Bishop Blanchet High SchoolSeattle, WA

    School

    $55,000
  4. Edmonds Woodway HS Athletic Booster ClubEdmonds, WA

    Educational

    $30,000
  5. Dawson Place Child Advocacy Center - Snohomish CountyEverett, WA

    Civic

    $5,000
  6. Assistance League of EverettEverett, WA

    Civic

    $5,000
  7. Assistance League of SeattleSeattle, WA

    Civic

    $5,000
  8. Whidbey Island NourishesLangley, WA

    Civic

    $5,000
  9. Whidbey Watershed StewardsLangley, WA

    Civic

    $5,000

Where the money goes

By cause: grants to organizations we matched to the IRS list of exempt organizations, by their category.

  1. Education1 grant $210,00091% of the total
  2. Philanthropy and grantmaking2 grants $10,0004% of the total
  3. Animals1 grant $5,0002% of the total
  4. Food and agriculture1 grant $5,0002% of the total

By State

Grants to organizations with a US address, latest year.

  1. Washington8 grants $215,000
  2. Illinois1 grant $210,000

Officers, directors and trustees

5 people as filed

As filed on the return, with average hours per week and pay from the foundation.

  • Jeffrey A AlsdorfVICE PRESIDENT Hours 1Pay $0
  • Bridget AlsdorfTREASURER Hours 1Pay $0
  • Andrew AlsdorfPRESIDENT Hours 1Pay $0
  • Dirk AlsdorfDIRECTOR Hours 1Pay $0
  • Edward W Horner JrSECRETARY Hours 1Pay $0

The return

More foundations

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Same main cause (education), giving between a quarter and four times this foundation’s where possible, nearby first.

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  2. Yao Yuan Sze FoundationBellevue, WA 7 grants Preselected only $430,000 giving
  3. The David and Christina Lynch FoundationMead, WA 3 grants Preselected only $435,661 giving
  4. Carrie Welch TrustKenmore, WA 7 grants Accepts applications $414,000 giving
  5. Sujal and Meera Patel FoundationKirkland, WA 9 grants Preselected only $437,000 giving